Calculate the ph of a buffer that contains acetic acid

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Reference no: EM13717100

Question - 1) If we make a solution of a mixture of 2.30g of NaCN in 100 mL of water and 2.60g of HCN in 100 mL of water, what will be the pH of the buffer?

2) Calculate the pH of a buffer that contains 0.20 M acetic acid (HCrFI3O2) and 0.30 M sodium acetate (NaC2H3O2). Ka for acetic acid is 1.8 x 10^-5.

3) A solution is made by dissolving 2.10 gof NH4Cl in 100 mL of 0.102 M solution of NH3. Calculate the pH of the resulting solution. Ka for NH3 is 1.8x10^-5.

4) The pH of 0.2M formic acid solution is 1.39. What is the Ka of the acid? Calculate the I% for the acid.

Please explicate as much as possible, I'm seeking the simplest explanation for a high school student

Reference no: EM13717100

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